# A spring with a constant of #6 (kg)/(s^2)# is lying on the ground with one end attached to a wall. An object with a mass of #7 kg # and speed of # 5 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?

5,4 m

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Use the formula ( \frac{1}{2}kx^2 = \frac{1}{2}mv^2 ) to find ( x ). The spring will compress approximately 4.2 meters.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- How much work does it take to raise a #9 kg # weight #15 m #?
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- If a spring has a constant of #3 (kg)/s^2#, how much work will it take to extend the spring by #83 cm #?
- A balanced lever has two weights on it, the first with mass #7 kg # and the second with mass #29 kg#. If the first weight is # 3 m# from the fulcrum, how far is the second weight from the fulcrum?

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